Mycoplasma mobile
(Kirchhoff et al., 1987)
Etymology
Gr. n. mukes – fungus, Gr. neut. n. plasma – anything formed, N.L. neut. n. Mycoplasma – fungus form; L. neut. adj. mobile – mobile
Taxonomy
Mycoplasmatales – Mycoplasmataceae – Mycoplasma – Mycoplasma mobile (not part of a cluster), separated branch, related to Mycoplasma moatsii (16S rRNA gene sequence similarity – 90.06%) (Fig. 1)
Type strain
163KT (tench – Tinca tinca, Germany, -1984), (Fig. 2, 16S rRNA gene sequence)
Genomes
one completed (163KT – Germany) (NCBI Genome deposit per 11/05/2024)
Cell morphology
coccoid, elongated or flask-shaped
Colony morphology
fried egg morphology (Fig. 3)
Metabolism
fermentation of glucose; non-arginine-hydrolyzing, non-urea-hydrolyzing; temperature optimum for growth is 25°C (now growth at 30°C or above)
Host
tench (Tinca tinca)
Habitat
gills
Disease(s)
no disease reported, isolated from a tench with red disease
Pathogenicity
factors unknown, most exciting property of the species is its fast gliding motility
Epidemiology
unknown, singular strain isolated from the gills of a tench, no further strains exist
Diagnosis
cultivation (at 25°C) and species identification by MALDI-ToF MS or genetically
Fig. 1. Maximum likelihood tree showing the phylogenetic position of Mycoplasma mobile 163KT between the Bovis and Hyopneumoniae cluster of Mycoplasmataceae based on 16S rRNA gene sequences. Numbers at nodes represent bootstrap confidence values (1000 replications). Only values > 80% are shown. Bar, number of substitutions per nucleotide position. Credits: Joachim Spergser (Vetmeduni Vienna)
CTGGCTGTGTGCCTAATACATGCATGTCGAACGAAGAACTTGTTCTTAGTGGCGAATGGGTGAGTAACACGTATCTAACCTACCTTTTGGATGGGGATAACTGTTGGAAACAACAGCTAATACCGAATAACTATTTTAGTCGCATGACTTTAATATAAAAGGAGCGTTTGCTCCACCAAAAAATGGGGATGCGGAATATTAGTTAGTTGGCAGGGTAAAGGCCTACCAAGACGATGATATTTAGCCGGGCTGAGAAGCCGAACGGCCACACTGGGACTGAGATACGGCCCAGACTCCTACGGGAGGCAGCAGTAGGGAATCTTCCACAATGAGCGAAAGCTTGATGGAGCGACACAGCGTGAAGGATGAAGGTCTTCGGATTGTAAACTTCTGTTATAAGGGAAGAAAACCCTAGAGAGGAAATGCTCTAGATTTGACGGTACCTTATCAGAAAGCGACGGCTAACTATGTGCCAGCAGCCGCGGTAATACATAGGTCGCAAGCGTTATCCGGAATTATTGGGCGTAAAGCGTTCGTAGGCGGTTTATTAAGTCTGGAGTTAAATACTGGTGCTCAACACCAGCCCGCTTTGGATACTGGTAAACTAGAGTTATGTAGAGGTAAGCGGAATTCCATGTGAAGTGGTGGAATACGTAGATATATGGAAGAACACCAATGGCGAAGGCAGCTTACTGGACATATACTGACGCTCAGGAACGAAAGCGTGGGGAGCAAACAGGATTAGATACCCTGGTAGTCCACGCCGTAAACGTTGATCATTAGTTGGTGGGGAACTCACCGACACAGCTAACGCATTAAATGATCCGCCTGAGTAGTATGCTCGCAAGAGTGAAACTTAAAGGAATTGGCGGGGACCCGCACAAGCGGTGGAGCATGTGGTTTAATTTGAAGATACGCGTAGAACCTTACCCACTCTTGACATTTTTTGCAAAGGTATGGAGACATACTGGAGGTTAACAGAATAACAGATGGTGCATGGTTGTCGTCAGCTCGTGTCGTGAGATGTTTGGTTAAGTCCAGCAACGAGCGCAACCCTTGTCTTTAGTTACTAACATTAAGTTGAGGACTCTAGAGAGACTGCCTGGGTAACCAGGAGGAAGGTGAGGACGACGTCAAATCATCATGCCTCTTACGAGTGGGGCAACACACGTGCTACAATGGCTAATACAAAGTGAAGCAAAATGGTGACATTAAGCAAACCACAAAAAATTAGTCTCAGTTCGGATCGAAGTCTGAAACTCGACTTCGTGAAGTCGGAATCGCTAGTAATCATGAATCAGCTACGTCATGGTGAATACGTTCTCGGGTCTTGCACACACCGCCCGTCACACCATGGGAGCTAGTAATGCCCGAAGCCGGATAGTTAACTTCGGAGGCTACTGTCTAAGGCAGGACTGGTAACTGGGGTAGTCGTAACAAGGT
Fig. 2. 16S rRNA gene sequence of Mycoplasma mobile 163KT (Accession number: NR_074620)
Fig. 3. Colonies of Mycoplasma mobile 163KT on modified Hayflick’s agar after 4 days of incubation at 25°C exhibiting fried egg morphology. Bar, 1 mm. Credits: Joachim Spergser (Vetmeduni Vienna)